Calgary to London, UK - $288 roundtrip after taxes ?!
If this doesn't turn out to be a mistake this will be the craziest price to Europe since the 2009 fare to Spain for $100 roundtrip after taxes.
Here's how to find it...
1.
http://www.canadianaffair.ca
(a reputable and well known site)
2. Search for a flight from Calgary to London Gatwick, departing on April 28 and returning on May 10.
Hit 'Find Flights'
3. About halfway down the page, you'll see a box that says 'SPECIAL FLIGHT OFFERS'. Click on the little plus symbol to open it.
Now you'll see a couple of flight options for $273 roundtrip. Click on Book.
screenshot of verified price:
When I see a price this insane, I tell people your best chance is to book it online. Don't call.